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Public void accept (Visitor visitor) {The spring rain breaks at the beginning, the spring forest is in full bloom, and the spring breeze is ten miles less than you. This spring, the OPPO Star Family welcomed a new member @ Yang Yang.Soak the medicine part in boiling water/hot water for 10-15min, and filter.10. In the multi-player team formation mode, when a teammate survives, the player will enter a near-death state after being defeated, and other surviving teammates can approach and rescue him.黎章立即站起身道：马上走。The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.